Nummeropslag – Who's Calling?

Who's calling from an unknown number? Nummeropslag instantly shows who is calling in Denmark – company, spam rating and reviews – without ever touching your contact list.

Look up any Danish phone number in seconds and decide whether to answer.

Please note: Nummeropslag is an independent, private app. We are not affiliated with and do not represent any government authority. The app shows information from publicly available registers (see sources below).

WHAT YOU GET
• Who's calling – the company behind the number from the public CVR business register. Real data, not scraped phone books.
• Person or company? Instantly see whether an unknown number belongs to a registered business or a private individual.
• Spam & scam check – see how others rate the number before you answer, and avoid spam calls, scams and telemarketing.
• "Saved by N people" – a unique trust signal showing how many others have the number saved (anonymous and aggregated).
• Community reviews – read what others say and write your own: spam, scam, telemarketing, company or private.
• Report in one tap – flag spam calls and scam numbers and help everyone else.
• Caller ID and post-call info – see who's calling and get warned after calls from known spam numbers.

WHO CALLED? FIND THE ANSWER
Missed a call from an unknown number? Look it up in Nummeropslag and see who called – company, spam rating and reviews in one place.

PRIVACY FIRST
Most caller ID apps upload your entire contact list and make money from it. Nummeropslag never does.
• We never copy your phone book.
• We don't collect personal data.
• We sell nothing.
• Only anonymous, aggregated signals. GDPR-friendly from the ground up.

DATA SOURCES (official, publicly available)
• CVR – the Danish Central Business Register: https://datacvr.virk.dk
• The Danish Number Register (SDFI, open data): https://nummerregister.sdfi.dk
• Anonymous reports from real users

Nummeropslag is an independent private service and is not affiliated with CVR, the Danish Business Authority, SDFI or any other government authority.

Free number lookup. Available in Danish, English and Ukrainian.

nummeropslag.dk